Gobbledygook /ɡäbəldēˌɡo͞ok/ noun

Definition:  Gobbledygook is a term assigned to a collection of made-up words, phrases, and informal language. When someone is speaking gobbledygook, the words they speak aren’t typically found in a dictionary or commonly used by others in public. A person speaking “gobbledygook” is using meaningless language that normally doesn’t make much sense to anyone else but them.

In most cases, we think people who speak gobbledygook to be talking about nothing—discussing unimportant topics and speaking in nonsensical terms. It is unclear whether people use gobbledygook to disguise their words or if they are completely unaware of what they are saying. Sometimes, a person may consider any language that they don’t understand as gobbledygook.

Etymology: Considered by observers as “unintelligible jargon,” the first recorded use of gobbledygook was in the early 1940s. In 1944, it was used as a derivative of the irregular noun “gobble.” The term is synonymous with phrases like “the old song and dance.”

In a Sentence

They filled the report on the origin of COVID with gobbledygook.

I’m sorry, I don’t understand gobbledygook!

When I’m in math class, it all sounds like gobbledygook to me.

Synonyms 

Babble, Balderdash

Antonyms 

Sense, Truth